When fishing days dip into the subzero realm, there are two options: Take it all off and streak to the nearest sauna. Or stay cozy and casting thanks to these compressible and comfortable PrimaLoft® insulated pants. ExStream™ Pants deliver cutting edge warmth-to-weight performance even when wet. Convenient drop-in style hand warmer pockets help thaw rigid digits. And an adjustable waistband with internal Velcro® hook-and-loop tabs ensure an exacting fit and, coupled with soft brushed-tricot lining, ultimate comfort no mater what the forecast.

• Superior loft & highly compressible PrimaLoft® Synergy insulation offers excellent warmth-to-weight even when wet
• Adjustable waistband with internal Velcro® hook & loop tabs, soft brushed tricot lining, & external belt loops
• YKK® coil corrosion-resistant zip fly
• Drop-in style hand warmer pockets with soft, brushed tricot lining & cargo pocket with Velcro® hook & loop closure

FABRIC TECH: 70 denier, 100% Nylon Diamond weave fabric; 100% Nylon taffeta lining; Primaloft® Synergy (100g entire pant)

Size Chart

PrimaLoft® ONE is the highest performing insulation on the market for warmth, water resistance, softness and compressibility. PrimaLoft® ONE is an ultra-fine microfiber insulation that is as warm, soft and lightweight, and is warmer wet or dry than all other insulations.

Ultra-fine fibers form tiny air pockets that trap body heat and keep the cold out. The result is immediate warmth without the bulk. PrimaLoft® ONE Microfibers are engineered for permanent water resistance and create tight surface tension that resists moisture penetration, resulting in an insulation that dries faster than goose down. Ultra-fine fibers mimic the compressibility of goose down and are breathable, allowing moisture vapor to be transported through the fibers and away from the skin.

PrimaLoft® ONE Ultimate Performance, Warmth and Comfort

Excellent Thermally Efficiency

Superior Water Resistance

Dries Faster than Down

Lightweight and Breathable

As Warm, Soft and Compressible as Down

Wind Resistant


Little Parts from the YKK® Fastening Products Group create The Big Difference for our customers — fastening solutions intelligently integrated with the finished product to provide the highest quality, most durable gear. The Little Parts — zippers, metal buttons and snaps, and Nylon buckles — all earn the YKK® brand. The Big Difference begins with their obsession to ensure that every individual component renders maximum value to the finished whole. That commitment instills quality and value into every product. Simms utilizes fasteners built to withstand the harshest environments and YKK® provides the best solutions to meet those needs. All Simms outerwear features nylon YKK® zippers to minimize corrosion and provide high performing, durable wear.